Having similar/same issues with Kernel 5.3. I was observing 5.3 since this patch was committed - because I guessed it'll be fixed there at some point eventually. I just checked 5.3.0-51-generic and it does not pass my mini-stress test (compiling something on a nfs share): May 2 20:26:55 mwpc55 kernel: [ 71.492014] BUG: unable to handle page fault for address: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492017] #PF: supervisor read access in kernel mode May 2 20:26:55 mwpc55 kernel: [ 71.492018] #PF: error_code(0x0000) - not-present page May 2 20:26:55 mwpc55 kernel: [ 71.492019] PGD f3b7df067 P4D f3b7df067 PUD 0 May 2 20:26:55 mwpc55 kernel: [ 71.492022] Oops: 0000 [#1] SMP NOPTI May 2 20:26:55 mwpc55 kernel: [ 71.492026] CPU: 5 PID: 2995 Comm: kworker/u64:17 Tainted: P OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:55 mwpc55 kernel: [ 71.492027] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:55 mwpc55 kernel: [ 71.492040] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492045] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492047] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492048] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492050] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492051] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492052] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492053] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492054] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492056] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492058] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492059] Call Trace: May 2 20:26:55 mwpc55 kernel: [ 71.492063] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492066] ? wait_woken+0x80/0x80 May 2 20:26:55 mwpc55 kernel: [ 71.492067] mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492068] mempool_alloc+0x71/0x190 May 2 20:26:55 mwpc55 kernel: [ 71.492078] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492089] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492098] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492106] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492114] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492118] ? __switch_to_asm+0x34/0x70 May 2 20:26:55 mwpc55 kernel: [ 71.492127] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492130] process_one_work+0x1fd/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492132] worker_thread+0x34/0x410 May 2 20:26:55 mwpc55 kernel: [ 71.492134] kthread+0x121/0x140 May 2 20:26:55 mwpc55 kernel: [ 71.492135] ? process_one_work+0x3f0/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492136] ? kthread_park+0xb0/0xb0 May 2 20:26:55 mwpc55 kernel: [ 71.492138] ret_from_fork+0x22/0x40 May 2 20:26:55 mwpc55 kernel: [ 71.492140] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:55 mwpc55 kernel: [ 71.492172] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:55 mwpc55 kernel: [ 71.492181] CR2: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492183] ---[ end trace 1ac730932028eb54 ]--- May 2 20:26:55 mwpc55 kernel: [ 71.492185] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492186] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492187] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492189] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492190] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492191] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492192] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492193] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492195] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492196] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492196] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492272] BUG: unable to handle page fault for address: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492274] #PF: supervisor read access in kernel mode May 2 20:26:55 mwpc55 kernel: [ 71.492275] #PF: error_code(0x0000) - not-present page May 2 20:26:55 mwpc55 kernel: [ 71.492276] PGD f3b7df067 P4D f3b7df067 PUD 0 May 2 20:26:55 mwpc55 kernel: [ 71.492279] Oops: 0000 [#2] SMP NOPTI May 2 20:26:55 mwpc55 kernel: [ 71.492281] CPU: 5 PID: 3004 Comm: kworker/u64:25 Tainted: P D OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:55 mwpc55 kernel: [ 71.492283] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:55 mwpc55 kernel: [ 71.492294] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492297] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492300] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492301] RSP: 0018:ffff9aa8c2d27cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492302] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492304] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492305] RBP: ffff9aa8c2d27d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492306] R10: ffff9aa8c2d27dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492307] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492309] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492311] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492312] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492313] Call Trace: May 2 20:26:55 mwpc55 kernel: [ 71.492316] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492318] ? wait_woken+0x80/0x80 May 2 20:26:55 mwpc55 kernel: [ 71.492320] mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492322] mempool_alloc+0x71/0x190 May 2 20:26:55 mwpc55 kernel: [ 71.492333] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492346] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492356] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492365] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492374] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492377] ? __switch_to_asm+0x34/0x70 May 2 20:26:55 mwpc55 kernel: [ 71.492389] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492391] process_one_work+0x1fd/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492394] worker_thread+0x34/0x410 May 2 20:26:55 mwpc55 kernel: [ 71.492396] kthread+0x121/0x140 May 2 20:26:55 mwpc55 kernel: [ 71.492399] ? process_one_work+0x3f0/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492400] ? kthread_park+0xb0/0xb0 May 2 20:26:55 mwpc55 kernel: [ 71.492403] ret_from_fork+0x22/0x40 May 2 20:26:55 mwpc55 kernel: [ 71.492404] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:55 mwpc55 kernel: [ 71.492429] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:55 mwpc55 kernel: [ 71.492436] CR2: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492437] ---[ end trace 1ac730932028eb55 ]--- May 2 20:26:55 mwpc55 kernel: [ 71.492439] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492441] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492442] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492444] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492445] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492447] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492448] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492449] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492451] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492453] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492454] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492487] BUG: unable to handle page fault for address: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492488] #PF: supervisor read access in kernel mode May 2 20:26:55 mwpc55 kernel: [ 71.492489] #PF: error_code(0x0000) - not-present page May 2 20:26:55 mwpc55 kernel: [ 71.492490] PGD f3b7df067 P4D f3b7df067 PUD 0 May 2 20:26:55 mwpc55 kernel: [ 71.492493] Oops: 0000 [#3] SMP NOPTI May 2 20:26:55 mwpc55 kernel: [ 71.492495] CPU: 5 PID: 2993 Comm: kworker/u64:15 Tainted: P D OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:55 mwpc55 kernel: [ 71.492497] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:55 mwpc55 kernel: [ 71.492508] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492510] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492511] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492512] RSP: 0018:ffff9aa8c2cdfcd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492514] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492515] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492516] RBP: ffff9aa8c2cdfd08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492517] R10: ffff9aa8c2cdfdd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492518] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492520] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492521] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492523] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492524] Call Trace: May 2 20:26:55 mwpc55 kernel: [ 71.492526] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492529] ? wait_woken+0x80/0x80 May 2 20:26:55 mwpc55 kernel: [ 71.492530] mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492532] mempool_alloc+0x71/0x190 May 2 20:26:55 mwpc55 kernel: [ 71.492545] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492557] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492570] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492580] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492593] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492595] ? finish_task_switch+0x1aa/0x270 May 2 20:26:55 mwpc55 kernel: [ 71.492606] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492609] process_one_work+0x1fd/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492612] worker_thread+0x34/0x410 May 2 20:26:55 mwpc55 kernel: [ 71.492614] kthread+0x121/0x140 May 2 20:26:55 mwpc55 kernel: [ 71.492616] ? process_one_work+0x3f0/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492618] ? kthread_park+0xb0/0xb0 May 2 20:26:55 mwpc55 kernel: [ 71.492620] ret_from_fork+0x22/0x40 May 2 20:26:55 mwpc55 kernel: [ 71.492621] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:55 mwpc55 kernel: [ 71.492644] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:55 mwpc55 kernel: [ 71.492651] CR2: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492653] ---[ end trace 1ac730932028eb56 ]--- May 2 20:26:55 mwpc55 kernel: [ 71.492655] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492657] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492658] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492660] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492661] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492662] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492663] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492664] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492665] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492667] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492668] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.932092] BUG: unable to handle page fault for address: 000000002a1f5a71 May 2 20:26:56 mwpc55 kernel: [ 71.932096] #PF: supervisor read access in kernel mode May 2 20:26:56 mwpc55 kernel: [ 71.932097] #PF: error_code(0x0000) - not-present page May 2 20:26:56 mwpc55 kernel: [ 71.932098] PGD 0 P4D 0 May 2 20:26:56 mwpc55 kernel: [ 71.932101] Oops: 0000 [#4] SMP NOPTI May 2 20:26:56 mwpc55 kernel: [ 71.932104] CPU: 4 PID: 3000 Comm: kworker/u64:21 Tainted: P D OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:56 mwpc55 kernel: [ 71.932105] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:56 mwpc55 kernel: [ 71.932120] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932125] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:56 mwpc55 kernel: [ 71.932127] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:56 mwpc55 kernel: [ 71.932128] RSP: 0018:ffff9aa8c2d4fcd8 EFLAGS: 00010206 May 2 20:26:56 mwpc55 kernel: [ 71.932130] RAX: 000000002a1f5a71 RBX: 000000002a1f5a71 RCX: 00000000000003c1 May 2 20:26:56 mwpc55 kernel: [ 71.932132] RDX: 00000000000003c0 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:56 mwpc55 kernel: [ 71.932133] RBP: ffff9aa8c2d4fd08 R08: ffff8b709e731ed0 R09: ffff8b7098006d80 May 2 20:26:56 mwpc55 kernel: [ 71.932134] R10: ffff9aa8c2d4fdd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:56 mwpc55 kernel: [ 71.932135] R13: ffff8b7096a0ad80 R14: 000000002a1f5a71 R15: ffff8b7096a0ad80 May 2 20:26:56 mwpc55 kernel: [ 71.932136] FS: 0000000000000000(0000) GS:ffff8b709e700000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.932138] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.932139] CR2: 000000002a1f5a71 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.932140] Call Trace: May 2 20:26:56 mwpc55 kernel: [ 71.932143] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.932146] ? wait_woken+0x80/0x80 May 2 20:26:56 mwpc55 kernel: [ 71.932148] mempool_alloc_slab+0x15/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.932150] mempool_alloc+0x71/0x190 May 2 20:26:56 mwpc55 kernel: [ 71.932161] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932172] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932181] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932190] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932199] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932202] ? __switch_to_asm+0x34/0x70 May 2 20:26:56 mwpc55 kernel: [ 71.932211] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932214] process_one_work+0x1fd/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.932216] worker_thread+0x34/0x410 May 2 20:26:56 mwpc55 kernel: [ 71.932218] kthread+0x121/0x140 May 2 20:26:56 mwpc55 kernel: [ 71.932220] ? process_one_work+0x3f0/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.932221] ? kthread_park+0xb0/0xb0 May 2 20:26:56 mwpc55 kernel: [ 71.932223] ret_from_fork+0x22/0x40 May 2 20:26:56 mwpc55 kernel: [ 71.932225] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:56 mwpc55 kernel: [ 71.932257] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:56 mwpc55 kernel: [ 71.932266] CR2: 000000002a1f5a71 May 2 20:26:56 mwpc55 kernel: [ 71.932268] ---[ end trace 1ac730932028eb57 ]--- May 2 20:26:56 mwpc55 kernel: [ 71.932270] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:56 mwpc55 kernel: [ 71.932271] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:56 mwpc55 kernel: [ 71.932272] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:56 mwpc55 kernel: [ 71.932273] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:56 mwpc55 kernel: [ 71.932274] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:56 mwpc55 kernel: [ 71.932275] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:56 mwpc55 kernel: [ 71.932276] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:56 mwpc55 kernel: [ 71.932277] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:56 mwpc55 kernel: [ 71.932279] FS: 0000000000000000(0000) GS:ffff8b709e700000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.932280] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.932281] CR2: 000000002a1f5a71 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.945840] ------------[ cut here ]------------ May 2 20:26:56 mwpc55 kernel: [ 71.945842] virt_to_cache: Object is not a Slab page! May 2 20:26:56 mwpc55 kernel: [ 71.945850] WARNING: CPU: 21 PID: 432 at /build/linux-hwe-NGcyWb/linux-hwe-5.3.0/mm/slab.h:410 kmem_cache_free+0x1f3/0x2b0 May 2 20:26:56 mwpc55 kernel: [ 71.945851] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:56 mwpc55 kernel: [ 71.945872] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:56 mwpc55 kernel: [ 71.945880] CPU: 21 PID: 432 Comm: kworker/u64:3 Tainted: P D OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:56 mwpc55 kernel: [ 71.945881] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:56 mwpc55 kernel: [ 71.945893] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945895] RIP: 0010:kmem_cache_free+0x1f3/0x2b0 May 2 20:26:56 mwpc55 kernel: [ 71.945897] Code: 85 25 ff ff ff 0f 0b 80 3d 35 d3 56 01 00 75 88 48 c7 c6 20 fc e4 b8 48 c7 c7 d8 37 14 b9 c6 05 1e d3 56 01 01 e8 ed f5 df ff <0f> 0b e9 67 ff ff ff 65 8b 05 3f 57 f7 47 89 c0 48 0f a3 05 e5 93 May 2 20:26:56 mwpc55 kernel: [ 71.945898] RSP: 0018:ffff9aa8c0b97d40 EFLAGS: 00010286 May 2 20:26:56 mwpc55 kernel: [ 71.945899] RAX: 0000000000000000 RBX: ffff8b6f5c897a90 RCX: 0000000000000006 May 2 20:26:56 mwpc55 kernel: [ 71.945900] RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff8b709eb57440 May 2 20:26:56 mwpc55 kernel: [ 71.945901] RBP: ffff9aa8c0b97d68 R08: 00000000000005e6 R09: ffffffffb999f9c4 May 2 20:26:56 mwpc55 kernel: [ 71.945902] R10: ffff9aa8c0b97d30 R11: ffff9aa8c0b97b90 R12: ffff8b6f5c897a90 May 2 20:26:56 mwpc55 kernel: [ 71.945903] R13: 0000000000000000 R14: ffff8b708fe8acb0 R15: ffff8b6fdc897a90 May 2 20:26:56 mwpc55 kernel: [ 71.945905] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.945906] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.945907] CR2: 00007f4e221fdff0 CR3: 0000000eb2afc000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.945908] Call Trace: May 2 20:26:56 mwpc55 kernel: [ 71.945919] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945921] mempool_free_slab+0x17/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.945922] mempool_free+0x2f/0x90 May 2 20:26:56 mwpc55 kernel: [ 71.945932] rpc_free+0x50/0x70 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945941] xprt_release+0x92/0x1c0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945950] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945958] rpc_exit_task+0x5f/0xc0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945967] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945969] ? __switch_to_asm+0x34/0x70 May 2 20:26:56 mwpc55 kernel: [ 71.945978] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945980] process_one_work+0x1fd/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.945982] worker_thread+0x34/0x410 May 2 20:26:56 mwpc55 kernel: [ 71.945984] kthread+0x121/0x140 May 2 20:26:56 mwpc55 kernel: [ 71.945986] ? process_one_work+0x3f0/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.945987] ? kthread_park+0xb0/0xb0 May 2 20:26:56 mwpc55 kernel: [ 71.945989] ret_from_fork+0x22/0x40 May 2 20:26:56 mwpc55 kernel: [ 71.945991] ---[ end trace 1ac730932028eb58 ]--- May 2 20:26:56 mwpc55 kernel: [ 71.946008] general protection fault: 0000 [#5] SMP NOPTI May 2 20:26:56 mwpc55 kernel: [ 71.946014] CPU: 21 PID: 432 Comm: kworker/u64:3 Tainted: P D W OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:56 mwpc55 kernel: [ 71.946026] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:56 mwpc55 kernel: [ 71.946040] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946049] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:56 mwpc55 kernel: [ 71.946057] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:56 mwpc55 kernel: [ 71.946062] RSP: 0018:ffff9aa8c0b97cd8 EFLAGS: 00010282 May 2 20:26:56 mwpc55 kernel: [ 71.946072] RAX: a30a97eefc91553e RBX: a30a97eefc91553e RCX: 00000000000001d1 May 2 20:26:56 mwpc55 kernel: [ 71.946077] RDX: 00000000000001d0 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:56 mwpc55 kernel: [ 71.946083] RBP: ffff9aa8c0b97d08 R08: ffff8b709eb71ed0 R09: ffff8b7098006d80 May 2 20:26:56 mwpc55 kernel: [ 71.946089] R10: ffff9aa8c0b97dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:56 mwpc55 kernel: [ 71.946096] R13: ffff8b7096a0ad80 R14: a30a97eefc91553e R15: ffff8b7096a0ad80 May 2 20:26:56 mwpc55 kernel: [ 71.946103] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.946107] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.946108] CR2: 00007f4e221fdff0 CR3: 0000000eb2afc000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.946109] Call Trace: May 2 20:26:56 mwpc55 kernel: [ 71.946111] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.946113] ? wait_woken+0x80/0x80 May 2 20:26:56 mwpc55 kernel: [ 71.946114] mempool_alloc_slab+0x15/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.946116] mempool_alloc+0x71/0x190 May 2 20:26:56 mwpc55 kernel: [ 71.946125] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946135] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946146] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946154] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946164] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946167] ? __switch_to_asm+0x34/0x70 May 2 20:26:56 mwpc55 kernel: [ 71.946181] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946183] process_one_work+0x1fd/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.946186] worker_thread+0x34/0x410 May 2 20:26:56 mwpc55 kernel: [ 71.946188] kthread+0x121/0x140 May 2 20:26:56 mwpc55 kernel: [ 71.946190] ? process_one_work+0x3f0/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.946196] ? kthread_park+0xb0/0xb0 May 2 20:26:56 mwpc55 kernel: [ 71.946203] ret_from_fork+0x22/0x40 May 2 20:26:56 mwpc55 kernel: [ 71.946211] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:56 mwpc55 kernel: [ 71.946244] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:56 mwpc55 kernel: [ 71.946252] ---[ end trace 1ac730932028eb59 ]--- May 2 20:26:56 mwpc55 kernel: [ 71.946254] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:56 mwpc55 kernel: [ 71.946255] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:56 mwpc55 kernel: [ 71.946257] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:56 mwpc55 kernel: [ 71.946259] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:56 mwpc55 kernel: [ 71.946262] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:56 mwpc55 kernel: [ 71.946263] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:56 mwpc55 kernel: [ 71.946264] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:56 mwpc55 kernel: [ 71.946265] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:56 mwpc55 kernel: [ 71.946267] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.946274] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.946282] CR2: 00007f4e221fdff0 CR3: 0000000eb2afc000 CR4: 0000000000340ee0 May 2 20:27:02 mwpc55 kernel: [ 77.685450] general protection fault: 0000 [#6] SMP NOPTI May 2 20:27:02 mwpc55 kernel: [ 77.685454] CPU: 21 PID: 465 Comm: kworker/u64:8 Tainted: P D W OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:27:02 mwpc55 kernel: [ 77.685456] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:27:02 mwpc55 kernel: [ 77.685471] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685476] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:02 mwpc55 kernel: [ 77.685478] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:02 mwpc55 kernel: [ 77.685479] RSP: 0018:ffff9aa8c110fcd8 EFLAGS: 00210282 May 2 20:27:02 mwpc55 kernel: [ 77.685481] RAX: a30a97eefc91553e RBX: a30a97eefc91553e RCX: 00000000000001d1 May 2 20:27:02 mwpc55 kernel: [ 77.685482] RDX: 00000000000001d0 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:02 mwpc55 kernel: [ 77.685483] RBP: ffff9aa8c110fd08 R08: ffff8b709eb71ed0 R09: ffff8b7098006d80 May 2 20:27:02 mwpc55 kernel: [ 77.685484] R10: ffff9aa8c110fdd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:02 mwpc55 kernel: [ 77.685485] R13: ffff8b7096a0ad80 R14: a30a97eefc91553e R15: ffff8b7096a0ad80 May 2 20:27:02 mwpc55 kernel: [ 77.685487] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:27:02 mwpc55 kernel: [ 77.685488] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:02 mwpc55 kernel: [ 77.685489] CR2: 00000000cf1ff000 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:27:02 mwpc55 kernel: [ 77.685490] Call Trace: May 2 20:27:02 mwpc55 kernel: [ 77.685494] ? mempool_alloc_slab+0x15/0x20 May 2 20:27:02 mwpc55 kernel: [ 77.685497] ? wait_woken+0x80/0x80 May 2 20:27:02 mwpc55 kernel: [ 77.685498] mempool_alloc_slab+0x15/0x20 May 2 20:27:02 mwpc55 kernel: [ 77.685500] mempool_alloc+0x71/0x190 May 2 20:27:02 mwpc55 kernel: [ 77.685510] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685522] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685531] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685540] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685549] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685552] ? __switch_to_asm+0x34/0x70 May 2 20:27:02 mwpc55 kernel: [ 77.685561] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685564] process_one_work+0x1fd/0x3f0 May 2 20:27:02 mwpc55 kernel: [ 77.685566] worker_thread+0x34/0x410 May 2 20:27:02 mwpc55 kernel: [ 77.685568] kthread+0x121/0x140 May 2 20:27:02 mwpc55 kernel: [ 77.685570] ? process_one_work+0x3f0/0x3f0 May 2 20:27:02 mwpc55 kernel: [ 77.685571] ? kthread_park+0xb0/0xb0 May 2 20:27:02 mwpc55 kernel: [ 77.685573] ret_from_fork+0x22/0x40 May 2 20:27:02 mwpc55 kernel: [ 77.685575] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:27:02 mwpc55 kernel: [ 77.685605] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:27:02 mwpc55 kernel: [ 77.685614] ---[ end trace 1ac730932028eb5a ]--- May 2 20:27:02 mwpc55 kernel: [ 77.685615] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:02 mwpc55 kernel: [ 77.685617] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:02 mwpc55 kernel: [ 77.685618] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:27:02 mwpc55 kernel: [ 77.685619] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:27:02 mwpc55 kernel: [ 77.685620] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:02 mwpc55 kernel: [ 77.685621] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:27:02 mwpc55 kernel: [ 77.685622] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:02 mwpc55 kernel: [ 77.685623] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:27:02 mwpc55 kernel: [ 77.685625] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:27:02 mwpc55 kernel: [ 77.685626] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:02 mwpc55 kernel: [ 77.685627] CR2: 00000000cf1ff000 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:27:04 mwpc55 kernel: [ 80.129448] general protection fault: 0000 [#7] SMP NOPTI May 2 20:27:04 mwpc55 kernel: [ 80.129452] CPU: 21 PID: 473 Comm: kworker/u64:12 Tainted: P D W OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:27:04 mwpc55 kernel: [ 80.129453] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:27:04 mwpc55 kernel: [ 80.129459] Workqueue: writeback wb_workfn (flush-253:1) May 2 20:27:04 mwpc55 kernel: [ 80.129463] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:04 mwpc55 kernel: [ 80.129465] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:04 mwpc55 kernel: [ 80.129466] RSP: 0018:ffff9aa8c113f258 EFLAGS: 00010282 May 2 20:27:04 mwpc55 kernel: [ 80.129468] RAX: a30a97eefc91553e RBX: a30a97eefc91553e RCX: 00000000000001d1 May 2 20:27:04 mwpc55 kernel: [ 80.129469] RDX: 00000000000001d0 RSI: 0000000000092a20 RDI: 0000000000031ed0 May 2 20:27:04 mwpc55 kernel: [ 80.129470] RBP: ffff9aa8c113f288 R08: ffff8b709eb71ed0 R09: ffff8b6f34881000 May 2 20:27:04 mwpc55 kernel: [ 80.129471] R10: 0000000000000028 R11: 00000000000000a8 R12: 0000000000092a20 May 2 20:27:04 mwpc55 kernel: [ 80.129472] R13: ffff8b7096a0ad80 R14: a30a97eefc91553e R15: ffff8b7096a0ad80 May 2 20:27:04 mwpc55 kernel: [ 80.129474] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:27:04 mwpc55 kernel: [ 80.129475] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:04 mwpc55 kernel: [ 80.129476] CR2: 00007f9f0d7e0a18 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:27:04 mwpc55 kernel: [ 80.129477] Call Trace: May 2 20:27:04 mwpc55 kernel: [ 80.129480] ? mempool_alloc_slab+0x15/0x20 May 2 20:27:04 mwpc55 kernel: [ 80.129484] ? wait_woken+0x80/0x80 May 2 20:27:04 mwpc55 kernel: [ 80.129485] mempool_alloc_slab+0x15/0x20 May 2 20:27:04 mwpc55 kernel: [ 80.129487] mempool_alloc+0x71/0x190 May 2 20:27:04 mwpc55 kernel: [ 80.129490] ? alloc_iova_fast+0x60/0x250 May 2 20:27:04 mwpc55 kernel: [ 80.129491] ? iommu_map_page+0x3bb/0x4b0 May 2 20:27:04 mwpc55 kernel: [ 80.129494] sg_pool_alloc+0x45/0x50 May 2 20:27:04 mwpc55 kernel: [ 80.129497] __sg_alloc_table+0x75/0x160 May 2 20:27:04 mwpc55 kernel: [ 80.129499] sg_alloc_table_chained+0x44/0xa0 May 2 20:27:04 mwpc55 kernel: [ 80.129500] ? mac_pton+0xb0/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129502] ? __sbitmap_queue_get+0x2b/0xa0 May 2 20:27:04 mwpc55 kernel: [ 80.129505] scsi_init_io+0x54/0x190 May 2 20:27:04 mwpc55 kernel: [ 80.129507] ? __blk_mq_get_tag+0x21/0x80 May 2 20:27:04 mwpc55 kernel: [ 80.129510] sd_init_command+0x36f/0xb20 May 2 20:27:04 mwpc55 kernel: [ 80.129513] ? ktime_get+0x43/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129515] scsi_queue_rq+0x530/0xa60 May 2 20:27:04 mwpc55 kernel: [ 80.129517] blk_mq_dispatch_rq_list+0x93/0x540 May 2 20:27:04 mwpc55 kernel: [ 80.129519] ? elv_rb_del+0x24/0x30 May 2 20:27:04 mwpc55 kernel: [ 80.129521] ? deadline_remove_request+0x4e/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129524] blk_mq_do_dispatch_sched+0x67/0x100 May 2 20:27:04 mwpc55 kernel: [ 80.129526] blk_mq_sched_dispatch_requests+0xfd/0x170 May 2 20:27:04 mwpc55 kernel: [ 80.129528] __blk_mq_run_hw_queue+0x5a/0x110 May 2 20:27:04 mwpc55 kernel: [ 80.129530] __blk_mq_delay_run_hw_queue+0x107/0x160 May 2 20:27:04 mwpc55 kernel: [ 80.129532] blk_mq_run_hw_queue+0x56/0x100 May 2 20:27:04 mwpc55 kernel: [ 80.129534] blk_mq_sched_insert_requests+0x7a/0x100 May 2 20:27:04 mwpc55 kernel: [ 80.129536] blk_mq_flush_plug_list+0x1eb/0x2a0 May 2 20:27:04 mwpc55 kernel: [ 80.129539] blk_flush_plug_list+0xd1/0x100 May 2 20:27:04 mwpc55 kernel: [ 80.129541] blk_mq_make_request+0x306/0x590 May 2 20:27:04 mwpc55 kernel: [ 80.129544] ? dm_process_bio+0x151/0x220 May 2 20:27:04 mwpc55 kernel: [ 80.129546] generic_make_request+0x121/0x300 May 2 20:27:04 mwpc55 kernel: [ 80.129549] submit_bio+0x40/0x160 May 2 20:27:04 mwpc55 kernel: [ 80.129550] ? submit_bio+0x40/0x160 May 2 20:27:04 mwpc55 kernel: [ 80.129552] ? bio_add_page+0x3c/0x90 May 2 20:27:04 mwpc55 kernel: [ 80.129554] ext4_io_submit+0x4d/0x60 May 2 20:27:04 mwpc55 kernel: [ 80.129556] ext4_bio_write_page+0x28d/0x550 May 2 20:27:04 mwpc55 kernel: [ 80.129559] mpage_submit_page+0x59/0x80 May 2 20:27:04 mwpc55 kernel: [ 80.129561] mpage_map_and_submit_buffers+0x132/0x220 May 2 20:27:04 mwpc55 kernel: [ 80.129564] ext4_writepages+0x82a/0xe90 May 2 20:27:04 mwpc55 kernel: [ 80.129567] do_writepages+0x4b/0xe0 May 2 20:27:04 mwpc55 kernel: [ 80.129569] ? do_writepages+0x4b/0xe0 May 2 20:27:04 mwpc55 kernel: [ 80.129583] ? decode_getfattr_generic.constprop.110+0x192/0x250 [nfsv4] May 2 20:27:04 mwpc55 kernel: [ 80.129585] __writeback_single_inode+0x40/0x330 May 2 20:27:04 mwpc55 kernel: [ 80.129587] ? __writeback_single_inode+0x40/0x330 May 2 20:27:04 mwpc55 kernel: [ 80.129589] writeback_sb_inodes+0x1e6/0x510 May 2 20:27:04 mwpc55 kernel: [ 80.129592] __writeback_inodes_wb+0x67/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129594] wb_writeback+0x265/0x2f0 May 2 20:27:04 mwpc55 kernel: [ 80.129596] ? perf_addr_filters_splice+0xe0/0x110 May 2 20:27:04 mwpc55 kernel: [ 80.129598] wb_workfn+0x180/0x400 May 2 20:27:04 mwpc55 kernel: [ 80.129600] ? wb_workfn+0x180/0x400 May 2 20:27:04 mwpc55 kernel: [ 80.129603] process_one_work+0x1fd/0x3f0 May 2 20:27:04 mwpc55 kernel: [ 80.129605] worker_thread+0x34/0x410 May 2 20:27:04 mwpc55 kernel: [ 80.129607] kthread+0x121/0x140 May 2 20:27:04 mwpc55 kernel: [ 80.129609] ? process_one_work+0x3f0/0x3f0 May 2 20:27:04 mwpc55 kernel: [ 80.129610] ? kthread_park+0xb0/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129613] ret_from_fork+0x22/0x40 May 2 20:27:04 mwpc55 kernel: [ 80.129614] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:27:04 mwpc55 kernel: [ 80.129645] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:27:04 mwpc55 kernel: [ 80.129654] ---[ end trace 1ac730932028eb5b ]--- May 2 20:27:04 mwpc55 kernel: [ 80.129656] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:04 mwpc55 kernel: [ 80.129658] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:04 mwpc55 kernel: [ 80.129659] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:27:04 mwpc55 kernel: [ 80.129660] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:27:04 mwpc55 kernel: [ 80.129661] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:04 mwpc55 kernel: [ 80.129663] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:27:04 mwpc55 kernel: [ 80.129664] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:04 mwpc55 kernel: [ 80.129665] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:27:04 mwpc55 kernel: [ 80.129666] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:27:04 mwpc55 kernel: [ 80.129667] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:04 mwpc55 kernel: [ 80.129668] CR2: 00007f9f0d7e0a18 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:27:15 mwpc55 kernel: [ 91.115450] BUG: unable to handle page fault for address: 000000002a1f5a71 May 2 20:27:15 mwpc55 kernel: [ 91.115453] #PF: supervisor read access in kernel mode May 2 20:27:15 mwpc55 kernel: [ 91.115455] #PF: error_code(0x0000) - not-present page May 2 20:27:15 mwpc55 kernel: [ 91.115456] PGD 0 P4D 0 May 2 20:27:15 mwpc55 kernel: [ 91.115459] Oops: 0000 [#8] SMP NOPTI May 2 20:27:15 mwpc55 kernel: [ 91.115462] CPU: 4 PID: 466 Comm: kworker/u64:9 Tainted: P D W OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:27:15 mwpc55 kernel: [ 91.115463] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:27:15 mwpc55 kernel: [ 91.115479] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115484] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:15 mwpc55 kernel: [ 91.115486] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:15 mwpc55 kernel: [ 91.115488] RSP: 0018:ffff9aa8c1117cd8 EFLAGS: 00010206 May 2 20:27:15 mwpc55 kernel: [ 91.115489] RAX: 000000002a1f5a71 RBX: 000000002a1f5a71 RCX: 00000000000003c1 May 2 20:27:15 mwpc55 kernel: [ 91.115491] RDX: 00000000000003c0 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:15 mwpc55 kernel: [ 91.115492] RBP: ffff9aa8c1117d08 R08: ffff8b709e731ed0 R09: ffff8b7098006d80 May 2 20:27:15 mwpc55 kernel: [ 91.115493] R10: ffff9aa8c1117dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:15 mwpc55 kernel: [ 91.115494] R13: ffff8b7096a0ad80 R14: 000000002a1f5a71 R15: ffff8b7096a0ad80 May 2 20:27:15 mwpc55 kernel: [ 91.115496] FS: 0000000000000000(0000) GS:ffff8b709e700000(0000) knlGS:0000000000000000 May 2 20:27:15 mwpc55 kernel: [ 91.115497] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:15 mwpc55 kernel: [ 91.115498] CR2: 000000002a1f5a71 CR3: 0000000fd4a74000 CR4: 0000000000340ee0 May 2 20:27:15 mwpc55 kernel: [ 91.115500] Call Trace: May 2 20:27:15 mwpc55 kernel: [ 91.115503] ? mempool_alloc_slab+0x15/0x20 May 2 20:27:15 mwpc55 kernel: [ 91.115506] ? wait_woken+0x80/0x80 May 2 20:27:15 mwpc55 kernel: [ 91.115508] mempool_alloc_slab+0x15/0x20 May 2 20:27:15 mwpc55 kernel: [ 91.115510] mempool_alloc+0x71/0x190 May 2 20:27:15 mwpc55 kernel: [ 91.115522] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115534] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115544] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115554] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115564] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115567] ? __switch_to_asm+0x34/0x70 May 2 20:27:15 mwpc55 kernel: [ 91.115577] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115580] process_one_work+0x1fd/0x3f0 May 2 20:27:15 mwpc55 kernel: [ 91.115582] worker_thread+0x34/0x410 May 2 20:27:15 mwpc55 kernel: [ 91.115584] kthread+0x121/0x140 May 2 20:27:15 mwpc55 kernel: [ 91.115586] ? process_one_work+0x3f0/0x3f0 May 2 20:27:15 mwpc55 kernel: [ 91.115588] ? kthread_park+0xb0/0xb0 May 2 20:27:15 mwpc55 kernel: [ 91.115590] ret_from_fork+0x22/0x40 May 2 20:27:15 mwpc55 kernel: [ 91.115592] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:27:15 mwpc55 kernel: [ 91.115625] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:27:15 mwpc55 kernel: [ 91.115634] CR2: 000000002a1f5a71 May 2 20:27:15 mwpc55 kernel: [ 91.115636] ---[ end trace 1ac730932028eb5c ]--- May 2 20:27:15 mwpc55 kernel: [ 91.115638] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:15 mwpc55 kernel: [ 91.115639] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:15 mwpc55 kernel: [ 91.115641] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:27:15 mwpc55 kernel: [ 91.115642] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:27:15 mwpc55 kernel: [ 91.115643] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:15 mwpc55 kernel: [ 91.115644] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:27:15 mwpc55 kernel: [ 91.115645] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:15 mwpc55 kernel: [ 91.115647] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:27:15 mwpc55 kernel: [ 91.115648] FS: 0000000000000000(0000) GS:ffff8b709e700000(0000) knlGS:0000000000000000 May 2 20:27:15 mwpc55 kernel: [ 91.115649] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:15 mwpc55 kernel: [ 91.115650] CR2: 000000002a1f5a71 CR3: 0000000fd4a74000 CR4: 0000000000340ee0